MSDS: Slag Material Safety Data Sheet

1 MSDS: Slag Page 1 of 6 Revised: 03/01/14 Waterproof Gloves Waterproof Boots Eye Protection Respiratory Protection Material Safety data Sheet Section 1: PRODUCT AND COMPANY INFORMATION Product Name(s): Slag Product Identifiers: NewCem , LitexTM Lightweight Aggregate, True Lite Lightweight AggregateTM, VitrexTM Pelletized Slag, Ground Granulated Blast Furnace Slag (GGBFS), Blast Furnace Slag, Steel Slag, Granulated Slag, Pelletized Slag, Metallic Slag, Air Cooled Slag, Non-metallic Slag, Slag Cement, Hydraulic Slag Cement, Slag Manufacturer: Information Telephone Number: Lafarge North America Inc. 773-372-1000 (9am to 5pm CST) 8700 West Bryn Mawr Avenue, Suite 300 Emergency Telephone Number: Chicago, IL 60631 1-800-451-8346 (3E Hotline) Product Use: Slag is used as a supplementary cementitious Material for cement, concrete and concrete products.

2 It is also used in soil stabilization and as filler in asphalt and other products that are widely used in construction. Note: This MSDS covers many types of slag. Individual composition of hazardous constituents will vary between slag types. Section 2: COMPOSITION/INFORMATION ON INGREDIENTS Component Percent (By Weight) CAS Number OSHA PEL -TWA (mg/m3) ACGIH TLV- TWA (mg/m3) LD50 (mouse, intraperitoneal) LC50 Slag 100 65996-69-2 NA NA NA NA Calcium Oxide 30-50 1305-78-8 5 (T) 2 (T) 3059 mg/kg NA Magnesium Oxide 0-20 1309-48-4 15 (T) 10 (T) NA NA Crystalline Silica < 1 14808-60-7 [(10) / (%SiO2+2)] (R); [(30) / (%SiO2+2)] (T) (R) NA NA Particulate Not Otherwise Regulated - NA 5 (R); 15 (T) 3 (R).

3 10 (T) NA NA Note: Exposure limits for components noted with an * contain no asbestos and <1% crystalline silica Slag is a nonmetallic byproduct from the production of iron. Trace amounts of chemicals may be detected during chemical analysis. For example, slag may contain trace amounts of manganese oxide, titanium oxide, chromium compounds, sulfur compounds, and other trace compounds. Section 3: HAZARD IDENTIFICATION WARNING Irritant: Causes eye, skin and inhalation irritation Toxic - Harmful by inhalation. (Contains crystalline silica) Use proper engineering controls, work practices, and personal protective equipment to prevent exposure to wet or dry product.

4 Read MSDS for details. MSDS: Slag Page 2 of 6 Revised: 03/01/14 Section 3: HAZARD IDENTIFICATION (continued) Emergency Overview: Slag is a solid, grey/black or brown/tan, odorless powder. It is not combustible or explosive. A single, short-term exposure to the dry powder presents little or no hazard. Potential Health Effects: Eye Contact: Airborne dust may cause immediate or delayed irritation or inflammation. Eye contact with large amounts of dry powder or with wet slag can cause moderate eye irritation. Eye exposures require immediate first aid to prevent significant damage to the eye. Skin Contact: Slag may cause dry skin, discomfort, irritation, and dermatitis.

5 Dermatitis: Slag is capable of causing dermatitis by irritation and allergy. Skin affected by dermatitis may include symptoms such as, redness, itching, rash, scaling, and cracking. Irritant dermatitis is caused by the physical properties of slag including moisture and abrasion. Allergic contact dermatitis is caused by sensitization to hexavalent chromium (chromate) present in slag. The reaction can range from a mild rash to severe skin ulcers. Persons already sensitized may react to the first contact with slag. Others may develop allergic dermatitis after years of repeated contact with slag.

6 Inhalation (acute): Breathing dust may cause nose, throat or lung irritation, including choking, depending on the degree of exposure. Inhalation (chronic): Risk of injury depends on duration and level of exposure. Silicosis: This product contains crystalline silica. Prolonged or repeated inhalation of respirable crystalline silica from this product can cause silicosis, a seriously disabling and fatal lung disease. See Note to Physicians in Section 4 for further information. Carcinogenicity: Slag is not listed as a carcinogen by IARC or NTP; however, slag contains trace amounts of crystalline silica and hexavalent chromium which are classified by IARC and NTP as known human carcinogens.

7 Autoimmune Some studies show that exposure to respirable crystalline silica (without silicosis) or Disease: that the disease silicosis may be associated with the increased incidence of several autoimmune disorders such as scleroderma (thickening of the skin), systemic lupus erythematosus, rheumatoid arthritis and diseases affecting the kidneys. Tuberculosis: Silicosis increases the risk of tuberculosis. Renal Disease: Some studies show an increased incidence of chronic kidney disease and end-stage renal disease in workers exposed to respirable crystalline silica. Ingestion: Do not ingest slag. Ingestion of small quantities of slag is not known to be harmful, large quantities can cause distress to the digestive tract.

8 Medical Conditions Individuals with lung disease ( bronchitis, emphysema, COPD, pulmonary Aggravated by Exposure: disease) or sensitivity to hexavalent chromium can be aggravated by exposure. MSDS: Slag Page 3 of 6 Revised: 03/01/14 Section 4: FIRST AID MEASURES Eye Contact: Rinse eyes thoroughly with water for at least 15 minutes, including under lids, to remove all particles. Seek medical attention for abrasions. Skin Contact: Wash with cool water and a pH neutral soap or a mild skin detergent. Seek medical attention for rash, irritation, dermatitis, and prolonged unprotected exposures to wet slag, cement, cement mixtures or liquids from wet cement.

9 Inhalation: Move person to fresh air. Seek medical attention for discomfort or if coughing or other symptoms do not subside. Ingestion: Do not induce vomiting. If conscious, have person drink plenty of water. Seek medical attention or contact poison control center immediately. Note to Physician: The three types of silicosis include: Simple chronic silicosis which results from long-term exposure (more than 20 years) to low amounts of respirable crystalline silica. Nodules of chronic inflammation and scarring provoked by the respirable crystalline silica form in the lungs and chest lymph nodes.

10 This disease may feature breathlessness and may resemble chronic obstructive pulmonary disease (COPD). Accelerated silicosis occurs after exposure to larger amounts of respirable crystalline silica over a shorter period of time (5-15 years). Inflammation, scarring, and symptoms progress faster in accelerated silicosis than in simple silicosis. Acute silicosis results from short-term exposure to very large amounts of respirable crystalline silica. The lungs become very inflamed and may fill with fluid, causing severe shortness of breath and low blood oxygen levels. Progressive massive fibrosis may occur in simple or accelerated silicosis, but is more common in the accelerated form.